I can see someone in their 50's having a baby -- especially if they can do so naturually --- because they're likely to live well past 70 and have a good likelihood of raising the baby--- but 67 years old is definitely pushing it.
I guess if this woman would have allowed her other children to live, she would have grandchildren to love.
Well, you never know how long you'll live. But if I find myself pregnant in my 50's, I'm certainly not going to abort! Even if I didn't live until the (hypothetical) child was an adult, there would be other family members to care for him.